Tekram Technology DC-820B - Manual (Page 21)

21
EISA Fast SCSI Caching Adapter
Device Case 0 Case 1 Case 2
IDE HDD 0 none drive C: drive C:
IDE HDD 1 none none drive D:
SCSI device 0 (SCSI
ID = 0)
drive C: drive D: (*)
SCSI device 1 (SCSI
ID = 1)
drive D: (*) (*)
*: Not recognized by BIOS INT 13H, if existing. Can only be
controlled by device driver.
Case0: No IDE drive exists. You must set the SCSI ID as 0 for bootable
drive and 1 for the other.
Case1: The IDE drive is recognized as drive C:. And you must set the SCSI
ID as 0 for this SCSI drive (D:).
Case2: No more SCSI device can be controlled by BIOS INT 13H.
2) Enabled
This option can only be enabled for MS-DOS 3.3/4.0/5.0 and NetWare
duplexing environments. Do not activate it under other operating systems.
Under DOS 5.0, you are able to control up to eight devices controlled by
BIOS INT 13H, such as IDE/ESDI/ST506/SCSI fixed disk, removable car-
tridge, and re-writable optical disk (MO). As for the DOS 3.3/4.0, you can
only control up to two drives. This option occupies 1KB of conventional
memory space as the scratch-pad memory, i.e., 639KB-640KB. Also, this
option may cause some virus-protection software or hardware to issue a
false alarm.
To set this option as Enabled you are able to coexist with an Adaptec SCSI
adapter, but you have to leave 330H for Adaptec’s adapter and switch the
DC-820B’s I/O port to some other address. Aside from this, you have to add
the necessary device driver(s).
The following is an example under MS-DOS 5.0 with the option enabled:
To simplify the example, each device is defined as having only one DOS
partition, i.e., two devices for drives C:/D:, four devices for drives C:/D:/E:/